Valve



y 1932- c. JOHNSON 1,860,289 1 VALVE Filed Dec. 18, 192 9 67mm: 5s (/OHNJOA/ 425 m4 wafie INVENTOR ATTORNEY 15 claims.

" will normally drop to positions closingfth'e thenipples under the action of gravity, means 9 Patented May 24,1932 a 5 5 ,35

.Nisn STATES P 'rsNr; 1 CI-IARICES Johnson, or. omel I VALvE i Application med December'lS, 1929. Serial No. 414,985.

This invention relates to valve means for remain in position, due may pressure of gas a gas line, the general object of the invention acting on the valve 8, to permit flow through being to provide means for closing the line the outlet nipple. If the pressure should tall and keeping it closed if the'pressure therein for any reason, the valve 8 would drop. Then should fall so that when the pressure returns, ifthe pressure should rise again, the valve 8 55 gas cannot reach the burnersand other demight be opened, and by hitting the r0d=l0, vices and thus escape and injure persons in a the valve 6 With initial pressure thereagainst room or building. V will be released. fromthe-hook and closed so This invention also consists in certain oththe gas could not-escape from'the device,due

10 er features of construction and .in the comtothe fact that the valve 6 is closed. 'Itji's co bination and arrangement of the several then necessary tolower the rod 10 and place parts, to be hereinafter. fully described, ilits hook in engagement With the valve 6 and lustrated'in the accompanying drawings and then pull upthe rod to raise thevalve 6. specifically pointed out in the appended When this'is done, the valveSwill swing up i and with the valve 6 open theywill remain as 1 In describing the invention in detail, refopen until the pressure again drops. erence will be had to'the accompanying draw Thus I have'provided simple means for I ings wherein like characters denote like or preventing gasor thelikefrom escaping'from corresponding parts throughout the several burners or the like. after the pressure has views, and in which.: dropped toa point where the flames at the 7}:

Figure l is a similar view but with the burner will be extinguished. This inven-f valves in closed position. tion eliminates danger of asphyxiating per- Figure 2 is a view showing how the valves sons when the pressure rises again after the are raised- Qfiames have been extinguished. r

In these views, the numeral 1 indicates a 7 It is thought from the foregoing descrip 7 a- V-shaped. member which has an inlet nipple tion that the advantages and novel features 2 at one side thereof and anoutlet nipple 3 1 of the invention will be readily apparent. a at the opposite side, these nipples being in e It is to be understood that changes may be alignment and communicating with a chammade in the construction and in the combi- 33 ber i formed at the lowerpart of the V-shaped nation and arrangement of the several parts, 80 member. The upper portions of the limbs of provided that such changes fall within the the l-shaped member are closed by the blocks scope of the appended claims.

5 preferably made from light material, such What I claim is as aluminum. A disk shaped valve 6 is hing- 1. A device of the class described compris- 35 edly connected with the block in the dising a V-shaped member of hollow construce i charge sideof the member, asshown at, and tion, an inlet nipple connectedwith one side i i a similar valve 8 is hingedly "connected With thereof, an dutlet nippleqonnectedwith the the lower end of the other block, asshown at opposit side thereof, a pair of flap valves 9, these valves being so arranged that they in the memberand closing the inner ends of nipples under the action ofgravity. for raising the outlet valve whereby the pres- A ro'd'lO passes through the block-5 on the sure of gas will raise the other valve as long inlet side of the device and is normally held as the pressure'continues; p

in raised position by a spring 11. The lower 2. A device of the class described compris:

45 end oi the rod is formed'with a hook 12 so ing a V-shaped'member of hollow .constructhat by lowering the rod and placing the hook tion, an inlet nipple connected with one side V v under the valve 6, the same can be raised, as thereof, an outlet nipple. connectedjwith the shown in Figure 2, and when this valve is opposite side thereof, a pair of flap-valves in raised, the pressure of gas entering the device the member and closingthe inner endsof the will raise 'thevalve 8 and the two valves will nipplesunder the action of gravity,means for 91 raising the outlet valve whereby the pressure 7 of gas will rai'sethe other valve as long as the pressure continues, such raising means comprisin'g'a rod slidably'arranged in one limb of the V-shaped'member and having a; v I hook at its lower end for raising the outlet valve andra, spring for normallyholding the In testimony whereof I aflii si griature.

. CHARLES JOHNSONJI'V' 

